Add CMake buildsystem support.

	新文件：   CMakeLists.txt
	重命名：   LICENSE -> COPYING
	修改：     ChangeLog
	修改：     doc/platforms.md
	修改：     include/cppp/cppp-platform.h.in

Author: ChenPi11

CMakeLists.txt

@@ -0,0 +1,52 @@
+# Copyright (C) 2023 The C++ Plus Project.
+# This file is part of the cppp-platform library.
+#
+# The cppp-platform library is free software; you can redistribute it
+# and/or modify it under the terms of the The Unlicense as published
+# by the unlicense.org
+#
+# The cppp-platform library is distributed in the hope that it will be
+# useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+# of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the The
+# Unlicense for more details.
+#
+# You should have received a copy of the The Unlicense along with the
+# cppp-platform library; see the file COPYING.
+# If not, see <http://unlicense.org/>.
+
+cmake_minimum_required(VERSION 3.12)
+project(cppp-platform VERSION 1.3.0)
+
+# Set C++ standard
+set(CMAKE_CXX_STANDARD 11)
+
+if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/build-aux")
+    set(BUILD_AUX "${CMAKE_CURRENT_SOURCE_DIR}/build-aux")
+elseif(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/../build-aux")
+    set(BUILD_AUX "${CMAKE_CURRENT_SOURCE_DIR}/../build-aux")
+else()
+    message(FATAL_ERROR "CMake build-aux directory is not exists, try to execute 'setup.cmd' or './setup.sh' to get it.")
+endif()
+set(AUX_DIR "${BUILD_AUX}/cmake")
+
+message(STATUS "Using '${BUILD_AUX}' for C++ Plus build-aux directory.")
+add_subdirectory("${BUILD_AUX}")
+
+include("${AUX_DIR}/cppp.cmake")
+
+# Read source files
+file(READ "${srcdir}/src/architectures.h" ARCHITECTURES)
+file(READ "${srcdir}/src/compilers.h" COMPILERS)
+file(READ "${srcdir}/src/languagestandards.h" LANGUAGESTANDARDS)
+file(READ "${srcdir}/src/platforms.h" PLATFORMS)
+
+# Genetate header
+configure_file("${srcdir}/include/cppp/cppp-platform.h.in" "${output_includedir}/cppp/cppp-platform.h")
+
+# Install
+# Includes
+# PERMISSIONS 0644
+install(FILES "${output_includedir}/cppp/cppp-platform.h"
+        DESTINATION "${install_includedir}"
+        RENAME "cppp/cppp-platform.h"
+        PERMISSIONS OWNER_READ OWNER_WRITE GROUP_READ WORLD_READ )

LICENSE renamed to COPYING

@@ -1,3 +1,7 @@
+2023-08-08  ChenPi11  <wushengwuxi-msctinoulk@outlook.com>
+
+    Add CMake buildsystem support.
+
 2023-08-07  ChenPi11  <wushengwuxi-msctinoulk@outlook.com>
 
     Update docs.

ChangeLog

@@ -79,4 +79,4 @@ int main(){}
 | Windows | \_\_has_windows\_\_ |
 | Windows CE | \_\_has_windows_ce\_\_ |
 | Wind/U Environment | \_\_has_windu\_\_ |
-| z/OS | \_\_has_zos\_\_ |
+| z/OS | \_\_has_zos\_\_ |

doc/platforms.md

@@ -8,6 +8,21 @@
  * @see https://sourceforge.net/p/predef/wiki/Home/
  * @link https://github.com/cppp-project/cppp-platform
  */
+/* Copyright (C) 2023 The C++ Plus Project
+   This file is part of the cppp-platform library.
+
+   The cppp-platform library is free software; you can redistribute it
+   and/or modify it under the terms of the The Unlicense as published
+   by the unlicense.org
+
+   The cppp-platform library is distributed in the hope that it will be
+   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the The
+   Unlicense for more details.
+
+   You should have received a copy of the The Unlicense along with the
+   cppp-platform library; see the file COPYING.
+   If not, see <http://unlicense.org/>.  */
 
 #ifndef _CPPP_PLATFORM_H
 #define _CPPP_PLATFORM_H